Lucinda Shen, Dan PrimackPalmer Luckey. Photo: Kyle Grillot/Bloomberg via Getty ImagesErebor, a new digital bank co-founded by Anduril's Palmer Luckey, has quietly raised $350 million at a $4.35 billion post-money valuation, Axios has learned from multiple sources.Why it matters: Investor excitement in the stablecoin banking startup is reaching AI levels.Zoom in: Lux Capital led the round, which is said to also include other new investors.Existing backers include Founders Fund, 8VC and Haun Ven...